John Albert Carroll (July 30, 1901 – August 31, 1983) was a 20th Century American attorney and politician who served as a Democratic U.S. Representative and U.S.

Born in Denver, he attended the public schools, and during the First World War served in the United States Army from 1918 to 1919.

Rather than run for re-election to the House in 1950, he was an unsuccessful candidate for election as a Democrat to the United States Senate.

He was elected as a Democrat to the United States Senate in 1956, after defeating former United States Secretary of Agriculture Charles F. Brannan in the Democratic primary and former Republican Governor Daniel I.J.

He was an unsuccessful candidate for reelection in 1962, having been defeated by Republican Peter H. Dominick.